题目

       Why is setting goals important?   16  Instead of just letting life happen to you, goals allow you to make your life happen.        Successful people imagine how their life should be and set lots of goals.  17  It’s like having a map to show you where you want to go. Think of in this way. There are two drivers. One has a destination in mind which can be found in a map. She can drive straight there without any wasted time or wrong turns. The other driver has no goal, or destination or map. She starts off at the same time from the same place as the first driver, 蔬菜、水果中富含纤维素，纤维素被食入人体后的作用是 A． 为人体内的化学反应提供原料 B． 为维持人体生命活动提供能量 C． 加强肠胃蠕动，具有通便功能 D． 人体中没有水解纤维素的酶，所以纤维素在人体中没有任何作用